which of these indicated that the tang dynasty had lost the mandate of heaven? (4 points)

military defeats, rebellions, and economic troubles

earthquakes, economic troubles, and isolationism

rebellions, mass migrations, and military dictators

crop failures, reduced exports, and weakened currency

Which statement in the passage best reflects sumer's opinion of the dred scott decision? a."i speak what cannot be denied." b."[the] judgment was sustained by a falsification of history." b."the opinion was more thoroughly abominable than anything history." i speak what cannot be denied when i declare that the opinion of the chief justice in the case of dred scott was more thoroughly abominable than anything of the kind in the history of courts. judicial baseness reached its lowest point on that occasion. you have not forgotten that terrible decision where a most unrighteous judgment was sustained by a falsification of history. -charles sumner, 1865